Synthesis, Antimicrobial Activity, and Photocatalytic Performance of Ce Doped SnO2 Nanoparticles

Bhawna Bhawna,Sanjeev Kumar,Pramod Kumar,R P Singh,Ashish Kumar Choudhary,Prashant Singh,Vinod Kumar,Akanksha Gupta

doi:10.3389/fnano.2020.595352

Bhawna Bhawna, Sanjeev Kumar + Show 6 more

Open Access

https://doi.org/10.3389/fnano.2020.595352

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Abstract

This work represented the synthesis of Ce doped SnO2 nanoparticles by a wet chemical method and was characterized by various characterization techniques. PXRD confirmed the presence of the rutile phase for Ce doped SnO2 nanoparticles. SEM image and elemental mapping showed agglomerated irregular shaped particles and uniform distribution of 5% Ce ions within the SnO2 lattice, respectively. Ce doped SnO2 nanoparticles showed antimicrobial activity against E. coli and prevented the growth of bacteria. The nanoparticles were found photocatalytic active and photocatalytic behavior was elucidated by the degradation of Malachite Green dye under UV light irradiation.

Highlights

There has been a continuous threat to health, food packaging, cosmetics, and many more industries due to microbes and these industries highly depend on various antimicrobial agents (Ananpattarachai et al, 2009)
The Antimicrobial activity of Ce doped SnO2 nanoparticles was carried out using Diffusion Susceptibility Test method (Bauer et al, 1966)
The bacterial strain, E. coli was inoculated in 5 ml LB Media (Luria-Bertani; HiMedia Laboratories) and was kept at 37◦C and 180 rpm for overnight incubation

Summary

INTRODUCTION

There has been a continuous threat to health, food packaging, cosmetics, and many more industries due to microbes and these industries highly depend on various antimicrobial agents (Ananpattarachai et al, 2009). A few reports are available on antimicrobial activities of Ce doped metal oxide NPs. Ce-doped ZnO NPs showed antimicrobial activity against both gram-negative and gram-positive bacteria (Rooshde et al, 2020). (Gusain et al, 2019) Though, metal oxides such as TiO2, SnO2, ZnO have been found as better photocatalysts for the degradation of organic dyes in aquoues solution. This work involves the facile synthesis of Ce doped SnO2 nanoparticles and reports its antimicrobial behavior against microbes. It represents photocatalytic degradation of malachite green dye using Ce doped SnO2. Ce doped SnO2 nanoparticles were synthesized by a wet-chemical method using hydrogen peroxide, as mentioned in our previous report (Kumar et al, 2019b). The Field Emission Scanning Electron Microscope (FESEM) image of the SnO2 NPs was recorded on a ZEISS Gemini SEM 500

EVALUATION OF ANTIMICROBIAL ACTIVITY

AND DISCUSSION

CONCLUSION